Finding the Fourth Proportional to 2,810,691.18, 4,215,406.32 and 1,292,916.42
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Solution
The fourth proportional to 2,810,691.18, 4,215,406.32 and 1,292,916.42 is: 1,939,084.62
Step by Step Solution
- Step 1: Write the proportion equation
2,810,691.18 : 4,215,406.32 = 1,292,916.42 : x - Step 2: Convert to fraction form
2,810,691.18/4,215,406.32 = 1,292,916.42/x - Step 3: Cross multiply
2,810,691.18x = 4,215,406.32 × 1,292,916.42 - Step 4: Simplify right side
2,810,691.18x = 5,450,168,048,099.77 - Step 5: Solve for x
x = 5,450,168,048,099.77/2,810,691.18 - Step 6: Final answer
x = 1,939,084.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.